Lhrh agonistsgnrh analogs

A 55-year-old man with prostate cancer is started on a GnRH analog as part of his treatment. What effect does continuous administration of this drug have on his pituitary gland?

1: Stimulates the pituitary to release LH and FSH continuously
2: Desensitization of the pituitary and a decrease in the release of LH/FSH
3: It stimulates the pituitary to release more growth hormone.
4: It causes the pituitary to overproduce LH and FSH